Submerged force-pump.



No. 746,038. PATENTED DEC. 8, 1903.

F. B. DAVIS & F. W. HBNSHAW. SUBMERGED FORGE PUMP.

APPLICATION FILED MAY 11, 1903.

Z SHEETS-SHEET 1.

NO MODEL.

No. 746,038. PATENTED DEC. 8, 1903. P. B. DAVIS & F. W. HBNSHAW.

SUBMERGED FORGE PUMP.

APPLICATION FILED MAY 11, 1903.

Moran-mo" wAsumcTom a c UNITED STATES Patented December 8, 1903.

PATENT OFFICE FRANK B. DAVIS, OF AUDUBON, IOW'A, AND FRANK W. HENSHAW,OF ELKPOINT, SOUTH DAKOTA; SAID HENSHAW ASSIGNOR TO SAID DAVIS.

SUBMERGED FORCE-PUMP.

SFECIFICATION forming part of Letters Patent N 0. 746,038, datedDecember 8, 1903.

Application filed May 11, 1903. Serial No. 156,699. (No model.)

To all whom it may concern:

Be it known that we, FRANK B. DAVIS, residing at Audubon, in the countyof Audubon and State of Iowa, and FRANK W. HENSHAW, residing atElkpoint, in the county of Union and State of South Dakota, citizens ofthe United States, have invented a new and useful Submerged Force-Pump,of which the following is a specification.

Heretofore a cylinder adapted to be sub merged in a well and retainedstationary has been provided with a fixed well-tube for elevating waterand a piston fitted in the cylinder provided with a reciprocating stemfor operating the piston as required to force water up through thewell-tube fixed to the cylinder.

Our object is to utilize a well-tube for operating a piston in a fixedsubmerged cylinder, to provide means for cleaning the cylinder by theuse of the well-tube and piston, and also to provide improved means forapplying pressure to the reciprocating well-tube and piston.

Our invention consists in the construction, arrangement, and combinationof parts, as hereinafter set forth, pointed out in our claims, andillustrated in the accompanying drawings, in which Figure 1 is alongitudinal sectional view that shows the cylinder, well-tube, andpiston combined. Fig. 2 is a transverse sectional View of the cylinder,that shows a bottom composed of two parts separately hinged to thebottom of the cylinder and levers fulcrumed on top of the hinged partsto aid in opening the bottom of the cylinder for cleaning it by means ofthe piston and well-tube. Fig. 3 is a top view of thevalve adapted to beoperated by the piston and well-tube and the levers fnlcrumed to thehinged sections of the bottom of the cylinder. Fig. 4 shows ourinvention combined with a fixed well-cover and a hinged platform asrequired for use as a cattle-pump. Fig. 5 is a detail view showing thewell-tube bent and a foot-rest fixed thereto to adapt our pump to beoperated in a well or cistern by foot-pressu re.

The numeral 10 designates a cylinder that may vary in size as desired.It has an internal screw at its upper end in which is fitted a removabletop 12, and in the center of the top is fixed a tube 13 to extend up tothe top of a cistern or well to be fastened to a fixed cover to retainthe cylinder stationary and submerged as required for practical use. Twosemicircular fiat plates 14 and 15 are hinged to the open bottom of thecylinder to swing downward and outward to let sand or other matter thatmay gather thereon to drop 0%, as required for cleaning the cylinder,without lifting the cylinder or separating any of the operative partsfrom the cylinder. Levers 16 and 17 are fulcru med on top of the hingedfiat plates or bottom sections 14 and 15 to extend inward for supportingand lifting a checkvalve when cleaning the cylinder.

A check-valve 18, having an annular flange 19 at its top adapted to reston the inner ends or short arms of the levers 16 and 17,- is alsoprovided with an annular flange 2O at'its bottom by fixing a circularplate thereto or in any suitable way so that the flange 20 will preventthe valve from passing up into the cylinder. On top of the Valve 18, atits center, is a fixed projection 21, that is engaged by a valve in thepiston when the well-tube and piston are forced down for closing thecylinder.

A piston consisting of a short circular shell 22, closed at its top andopen at its bottom and provided with packing-rings 23 on its exterior,is fitted in the cylinder 10 and a valve-' seat 24 fixed in its bottom,and a check-valve 25, provided with annular flanges 26 and 27, is fittedto the valve-seat as required for opening and closing the valve andretaining it in its place. A well-tube 26 is fixed in the top of thecylinder, as shown in Fig. 1, or in any suitable way as required forreciprocating the piston and well-tube jointly by-means of pres sure byanimals on the platform 27 and a Weight 28, connected with the platform,as shown in Fig. 4, by foot-pressure on a footrest 29, fixed to the bentwell-tube, as shown in Fig. 5, or by hand force applied direct to thetop of the well-tube. The projection 21 on top of the valve 18 isdesigned to extend far enough above the levers 16 and 17 so that thevalve 25, carried in the piston 22, will depress the valve 18 and closethe bottom of the cylinder v10 before the bottom of the piston will comein contact with said levers. It is obvious reciprocating the Well-tubeand piston will force Water up through the well-tube.

When the piston is pressed down, the valve will be pressed up and openby coming in contact with the projection 21 of the valve 18.

- To clean the cylinder, the piston is pressed down upon the levers 16and 17 to force the hinged plates 14 and 15 downward and open, while atthe same time the inner ends of the levers will prevent the valve 18from dropping out of the cylinder.

Having thus described the purposes of our invention and the constructionand combination of all the parts, its practical operation and utilitywill be readily understood by persons familiar with the art to which itpertains, and

What we claim as new, and desire to secure by Letters Patent, is-- 1. Ina pump, a cylinder having a fixed top and a tube fixed in the top toextend upward, two fiat curved plates hinged to the bottom of thecylinder, means for retaining said plates in a closed position and alever fulcru med on top of each of said hinged plates, for the purposesstated.

2. In a pump, a cylinder havinga fixed top and a tube fixed in the topto extend upward two flat curved plates hinged to the bottom of thecylinder, means for retaining said platesin a closed position and alever fulcru med on top of each of said hinged plates, and a checkvalve,combined for the purposes stated.

3. A pump-cylinder, two flat curved plates hinged to the bottom of thecylinder, means for retaining said plates in a closed position, aleverfulcrumed on top of each of said hinged plates, and a check-valve havingannular flanges projecting outward at its top and bottom, combined tooperate in the manner set forth for the purposes stated.

4. A submerged force-pump comprising a cylinder closed at its top and-atube fixed in the top to extend upward, two flat curved plates or bottomsections hinged to the open bottom of the cylinder, means for retainingsaid plates in a closed position, a lever fulcrumed on the top of eachof said hinged bottom sections, a valve having annular flanges at itstop resting upon the inner ends of the levers, a flange at its bottom toengage the hinged plates or bottom sections and a projection on top ofthe valve, a piston closed at its top and a well-tube fixed in the topto extend upward, an internal flange at the open bottom of the cylinder,a check-valve fitted to said flange and means for reciprocating thepiston and Well-tube, combined to operate in the manner set forth forthe purposes stated.

FRANK B. DAVIS. FRANK W. HENSHAW.

Witnesses as to Frank B. Davis:

WILLIAM ELLIS, THoMAs G. ORWIG.

Witnesses as to Frank W. Henshaw:

H. M. WALLACE,

D. A. CRAWFORD.

